Hartzogs of Oklahoma & Texas 1860 + or-

I am trying to find out about the William (Little Willie) Hartzogs who left Dennison Tx and went to Indian Territory, Oklahoma during the land rush.He was 14 yrs old when the civil war started. (From Verbal History)and fought in the last indian raid in the Oklahoma territory around Lawton. His wife was Elizabeth Mae Brown who died in Denver,Colorado with a son, (Delvin?)at age 101. One son, Lionel Cam moved back to Texas.There may have been a daughter named Bessie.Family history also mentions twin children who were siblings of L.C.